1213627364420 has 96 divisors (see below), whose sum is σ = 2674245805056. Its totient is φ = 462060403200.

The previous prime is 1213627364387. The next prime is 1213627364429. The reversal of 1213627364420 is 244637263121.

It is not an unprimeable number, because it can be changed into a prime (1213627364429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27103250 + ... + 27147990.

It is an arithmetic number, because the mean of its divisors is an integer number (27856727136).

Almost surely, 2^{1213627364420} is an apocalyptic number.

1213627364420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1213627364420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1337122902528).

1213627364420 is an abundant number, since it is smaller than the sum of its proper divisors (1460618440636).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1213627364420 is a wasteful number, since it uses less digits than its factorization.

1213627364420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45501 (or 45499 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 41.

The spelling of 1213627364420 in words is "one trillion, two hundred thirteen billion, six hundred twenty-seven million, three hundred sixty-four thousand, four hundred twenty".